C3123223313331322121111331333133313231333132212113313331323211232333133313111   >>    C312322331333132212111133133313331323133313221211331333132321123233313331311   <<    C3123223313331322121111331333133313231333132212113313331323211232333133313113   >>      C3123223313331322121111331333133313231333132212113313331323211232333133313112   >>